Wrap stripe attachment for knitting machines



Oct. 19, 1948. c. s. GROVE, sR., ETAL 2,451,673

WRAP STRIPE ATTACHMENT FOR KNITTING MACHINES Filed Sept. 28, 1946 I 6Sheets-Sheet 1 l8 INVENTORS;

Coma/us 315mm 681M552, Jam/s Kw Mk/umry, 6

511.193 P/rrM ATTORNEY.

Oct. 19, 1948. c. s. GROVE, SR, ETAL 2,451,673

I WRAP STRIPE ATTACHMENT FOR KNITTING MACHINES Filed Sept. 28, I946 sSheets-Sheet 2 Comm/0s Sl/fPMAA/ Gem 53.9.

(Jul/us VAN MG/KM/NEY, 5

5/4/13 P/7'7'MA/V,

IN V EN TORS,

ATTORNEY Oct. 19, 1948. c. s. GROVE, SR, ET AL 2,451,573

WRAP STRIPE ATTACHMENT FO R KNITTING MACHINES Filed Sept. 28, 1946 6Sheets-Sheet 5 INVENTORS.

BY I Oct. 19, 1948. c. s. GROVE, SR, ETAL WRAP STRIPE ATTACHMENT FORKNITTING MACHINES v Filed Sept. 28, 1946 6 Sheets-Sheet 5 A 7 TOEA/f vOct. 19, 1948.

C. S. GROVE, SR., ET AL WRAP STRIPE ATTACHMENT FOR KNITTING MACHINESFiled Sept. 28, 1946 6 sheets sheet 6 Com/500s .S'l/LQMIA/ 0201 5, Se,l/L/US VAN Me/m/NEY, 3

INVENTORS- ATTORNEY,

Patented Oct 19, i948 WRAP STRIPE ATTAQHMENT FOR KNITTING MACHINESCornelius Sherman Grove, Sr., Julius Van Mc- Kinney, and Silas Pittman,Hickory, N. C., assignors to G. and H. Hosiery Company, Ind, Hickory, N.(3., a corporation of North Carolina Application September 28, 1946,Serial No. 700,056

9 Claims,

This invention relates to a knitting machine and more especially to awrap stripe attachment therefor.

It is an object of this invention to provide wrap stripe meansassociated with a circular knitting machine and having means for passingthe wrap threads across the needle circle and back behind the needlesafter certain raised needles have engaged the wrap threads, thuswrapping the wrap threads around the needles during knitting, andproviding a horn secured atone end to a bracket secured to the latchring of the knitting machine and along which the wrap threads travel andpass ofi the other end of same when the needles carrying the wrapthreads approach the knitting wave.

It is another object of this invention to provide in a knitting machine,a wrap stripe attachment for passing wrap threads across the needlecircle and back into the inside of the needle circle so that certainraised needles will engage the wrap threads, and the wrap threads willthus be wrapped around the needles and also means are provided forraising selected needles to take the wrap threads comprising a camadapted to be moved towards and away from the needle circle with certainof the needles having associated .therewith along butt jacks, otherneedles which are adapted to take the wrap threads having associatedtherewith medium butt jacks and the other needles which do not take thewrap threads and which do conventional knitting, having short buttsthereon. In this machine, only every other needle throughout the needlecircle has a jack associated therewith. Means are provided, including araising cam controlled by the pattern drum, which when advanced fullytowards the needle circle, engages the long butt and medium butt jacks,and raises selected spaced needles to take the wrap threads for theentire travel of the needle circle; that is, to form wrap stripes atspaced intervals entirely around the stocking. During heel and toeknitting, it is, of course, evident that the wrap stripes should notextend through the heel and the sole of the stocking. The medium buttjacks are provided for controlling the needles on one-half of the needlecircle, so that when the raising cam is moved to midway or intermediateposition, it will not raise 2 raised needles to engage the wrap threadsto" form wrap stripes in the fabric being knitted and having an arcuatehorn shaped member along which the wrap threads travel until they almostreach the knitting wave from whence the wrap threads pass off of the endof the horn, said horn being attached to the bracket which holds theclamp and cutter plate and extending downwardly and then extending in anarc of a circleimmediately inside the needles, said machine having aclamp and cutter plate associated therewith having a guide finger on oneend which extends upwardly and over the end of the horn from whence thewrap threads pass in a knitting operation and the other end of the clampand. cutter plate extending below and in spaced relation to the horn butextending to theouter edge of the horn, so that during reciprocatoryknitting, the wrap threads cannot-pass above the clamp and cutter platebut on account of the pointed end of the clamp' and cutter plate passingbeneath the horn a substantial distance, it will cause the wrap threadsguided by the horn, during back and forth knitting, to be confined bythe horn and clamp and cutter plate, and will not pass on top of theclamp and cutter plate.

Some of the objects of the invention having been stated, other objectswill appear as the description proceeds when taken in connection withthe accompanying drawings, in which Figure 1 is an elevation of theupper portion of a knitting machine commonly termed a Scott and WilliamsB-5 machine and showing the wrap stripe attachment mounted thereon;

Figure 2 is a sectional plan view taken substantially along the line 2-2in Figure 1;

Figure 3 is a sectional plan view taken substantially along the line 33in Figure 1 and showing much of the structure shown in Figure 2 but onan enlarged scale and showing only the central portion thereof;

Figure 4 is a sectional and elevational detail of the lower end of thewrap shaft showing the disk and tubes associated therewith, and takenalong the line 44 in Figure 3;

Figure 5 is a sectional view taken along the line 55 in Figure 3;

Figure 6 is a view similar to Figure 5, but showing the wrap shaft anddisk in raised position, and showing the gap closer moved to a differentposition;

Figure 7 is an exploded view of the needle circle looking from theinside thereof but not showing the full number of needles for sake ofclearness;

Figure 8 is a sectional view taken along the line 38 in Figure 2; V

Figure 9 is a sectional view taken along the line 9-9 in Figure 1;

Figure 10 is a sectional view through the support bracket andthroughthewrap shaft disk;

Figure 11 is a schematic view, in plan, of the needle jacks.

Referring more specifically to the drawings, the numeral l indicates thebed plate of a knitting machine having the tubular portion H extendingdownwardly therefrom. The bed plate is an annular member and has mountedfor rotation therein a needle cylinder having a plurality of needlesmounted in vertically disposed grooves therein. This cylinder is drivenby conventional means such as a bevelled gear l3 located on the mainshaft l4 and meshing with a horizontally disposed bevelled gear, notshown, afiixed to the cylinder. The main shaft |4 also has a bevelledgear l6 mounted thereon which meshes with a bevelled gear H on a shaft"3 which projects upwardly and drives the wrap stripe mechanism whichwill be presently described.

In the drawings we have shown certain spaced needles |3| which havemedium butt jacks M associated therewith and certain other spacedneedles |3| having long butt jacks L associated therewith and theremainder of the needles |3| have short butt jacks S associatedtherewith. Of course, in this type of machine only every other one ofthe needles will have a jack associated therewith as the other needlesI36 will have their conventional butts which will be raised and loweredin a conventional manner by conventiona1 cams. The purpose of thesedifferent length jacks will be explained later in this application.

The knitting machine has a conventional sinker ring associated therewithhaving conventional sinkers, not shown, mounted therein and whichproject between the needles in a conventional manner for holding theloops on the needles and preventing the loops being raised by theneedles. The machine also has a conventional latch ring 2| pivoted as at22, and it also has a plurality of yarn feed fingers 23 which operate ina conventional manner. Mounted within the latch ring is a gap closerring 24 which is oscillatable by means of a link 26 having its other endconnected to a lever 21 which is operated in a conventional manner bythe main pattern drum. The gap closer ring is held in nornial operatingposition so as not to close the throat gap during circular knitting bymeans of a tension spring 36 anchored at one end to the lever 21 and atits other end to a spring perch :1

3| secured to the exterior of the latch ring.

The latch ring has a projecting portion 33 which is adapted to engage aleaf spring 34 mounted on a bracket 35 extending upwardly from the bedplate II] for holding the latch ring in lowered or operating position.

The latch ring has secured thereto a bracket which is secured to theprojecting portion 33- of the latch ring and extends upwardly and theninwardly to a point about centrally of the needle circle and has securedto the lower surface thereof centrally of the needle circle by means ofa shaft 39 a clamp and cutter plate 4| which has a conventional springclamp 42 and a pivoted clamp 43 and a cutter mechanism 44 which areconventional and are operated by a link 45 having its upper end pivotedto a lever 41 pivoted on a shaft 48 and is operated by a conventionalpush rod engaging the outer end thereof and which push rod is not shownbut is controlled by the main pattern drum.

The lever 41 has projecting upwardly therefrom an arm 5| which isadapted to engage the horizontal portion of an arm 52 having its lower'end secured as at 53 in a crank member 54 pivoted as at 55 and having acam portion 56 on its free end adapted to be engaged by a cam on a diskon the wrap stripe shaft which will be presently described to operatethe clamp and cutter upon each revolution of the wrap shaft.

The bracket member 4|] also has extending downwardly therefrom a shaft60 which is secured also to the clamp and cutter plate 4| for assistingin supporting the clamp and cutter plate. The bracket 46 centrally ofthe clamp and cutter plate rises upwardly and then laterally, and has abearing portion 64 associated therewith in which a bushing 65 is.rotatably mounted. This bushing 65 has an enlarged portion 66 secured onits upper end which is adapted to rest on top of the bearing 64. Thebushing 65 has a plurality of Vertically disposed bores 61 thereinthrough which the wrap threads W pass on their travel from the yarnpackages 98 to the needles.

Integral with the lower end of the bushing 65 is a bevelled gear 1athrough which the bores 61 extend. The wrap shaft 12 has a key 13therein and the bushing 65 has a key-way 14 therein which allows up anddown movement of the wrap shaft 12. The bevelled gear H! has meshingtherewith a bevelled gear 15 which is mounted on a shaft 18 rotatablymounted in'a portion 16 of the bracket 40 and this portion 16 extendsdownwardly and is secured to a projecting portion of the latch ring asat 11.

Secured on the shaft 18 is another bevelled gear which meshes with abevelled gear 8| secured on the upper end of the shaft IS. The shaft I8is mounted in a tubular uprising member 84 and in which it rotates. Theouter end of the shaft 18 is rotatably mounted in a bearing portion 86which is integral with the horizontally disposed portion 83 of thebracket 40. An ou wardly projecting portion 88 of the uprising tubularmember 84 has mounted therein a set screw 89 which engages the lowersurface of the portion 86 and limits the downward movement of thebracket and the latch ring when they are moved to operating position.The portion 86 has a leaf spring member 90 mounted thereon whichprojects downwardly and has a suitable hole therein adapted to engage apin 9| on the outwardly projecting portion 88 to assist the leaf spring34 in looking the latch ring in operating position.

The downward movement of the wrap shaft 12 is limited by a collar 94secured on the wrap shaft immediately above the flange 66 by anysuitable means such as set screw 95. The wrap shaft '52 has mountedthereon a circular table 96 on which a plurality of pins 9'! are mountedfor holding cops of wrap yarn 96. This disk or table has in its hubportion 93 a plurality of vertically disposed eyelets 99 through whichthe wrap threads W pass.

On the upper end of the wrap shaft i2 is mounted a plate I66 having aplurality of arms l6! and each arm having an eyelet I92 therein throughwhich a wrap thread passes upwardly and goes through a suitable tensiondevice m3 mounted on an uprising portion Hi4 and on the upper end ofportions 59-; are mounted the takeup arms H35 through which the wrapyarns also pass, said take-up arms being biased towards upraisedposition by means of a tension spring 56?. The hub portion 169 of theplate Hi6 has a plurality of vertically disposed eyelets through whichthe wrap threads pass in their downward movement. Before they passthrough these 2,451, are

eyelets, however, they ass beneath a ring 1 I18 supported just outsideof the hub portion 1-109 of the: plate i100.

Mounted on wrap shaft 1:2 and below the bearing 64 is a disk IIII havinga plurality of vertically disposed passageways ;I;I.I- therein throughwhich the wrap threads :pass in their downward travel to the needles;This'disk ,I I has a cam H 2 thereon adapted to engage .the pointed end55 of the lever 54 for operating the clamp and cutter mechanism uponeach revolution of the wrap shaft when the wrap shaft is in loweredposition.

Immediately below the disk Ill] and on the lower endof the wrap shaft 12is a wrap disk Ii 5 having a plurality of vertically disposed tubesIZIfi therein through which the wrap threads W pass in their downwardtravel and said tubes being adapted to move across the needle circle,since the wrap shaft 12 is mounted eccentrically with respect to thecenter of the needle circle, but its vertical .aXis is at a point withinthe needle circle.

Pivoted on shaft 48 is a lever II4 whose front end extends below thedisk H0 and its rear end has a pin II 1 engaged by a lever I I8, pivotedat H9 and whose rear end is raised and lowered by -a conventional pushrod I23 controlled by the main pattern drum. Mounted on the bracket 45by means of screws 18-0 is a shank portion I20 of'a substantiallysemi-circular horn I2I which extends around inside the needle circle inclose proximity to the needles to a point immediately past the throatgap of the machine. This horn is disposed slightly above the clamp andcutter plate, but the clamp and cutter plate has a pointed portion I24which extends to approximately flush with the outer surface of the hornbut is disposed below and in spaced relation to the horn Figure 5 andthus prevents the wrap threads from getting above the clamp and cutterplate during reciprocatory knitting. The clamp and cutter plate 41 has aguide 46 extending upwardly and above the horn I2I for guiding the wrapyarns under the clamp and cutter plate. Plate 4! has an upturned finger.9 projecting above the end of horn I 21 to guide the Wrap yarns beneaththe clamp and cutter plate 41. The guide finger 46 as well as clamp 42are secured to the clamp and. cutterplate 4| by means of a screw 49.

It is understood that this machine is usually equipped with aconventional rubber feed attachment for feeding an elastic yarn to theneedles especially during the knitting of the top section, but suchrubber attachment is not shown for sake of clearness.

In Figure 7 an exploded view of the needle circle is shown looking fromthe inside thereof and, although not as many needles are present :nothave any jacksassociated therewith but whose butts can be long, short ormedium, and are controlled by conventional cams, not shown. Alternatelydisposed between these conventional needles having no jacks associatedtherewith, are a plurality of'needles I3I. Some of these nee- ;dles I31have long butts jacks L associated therewith while others of the needleshave medium butt jacks M associated therewith. These long and mediumbutt jacks are adapted to be engaged by a raising .cam I for raising thelong butt jacks L and the medium butt jacks M.

The cam I35 has aflixed thereto a stem I31 which is slidably mounted, ina bracket I38- mounted on top of the bed plate II] of the machine. Thebracket I38 has a slot I40 on its upper side and a pin MI is aflixed tothe shank I31 and has a tension spring I42 secured thereto whose otherend is secured to a spring perch I43 secured on top of the bed plate ID.This normally tends to hold the cam I35 out of the path of either thelong or medium butt jacks L and M. Adapted to engage the outer end ofthe portion I31 is a set screw I45 mounted in an upturned portion I 46on the end of a lever I41 pivoted as at I48 and supported at its otherend by a guide I53 disposed thereabove to assist the lever I41 inwithstanding the upward thrust of a push rod I52 which is raised by theconventional main pattern drum of the machine.

The push rod I52 has a cut-away portion E69 which is adapted to coincidewith lever I41 when the push rod I52 is not resting on any cams on themain pattern drum. This push rod E52 also has a cammed surface I62,which when the push rod I52 is raised upwardly by a low cam on the mainpattern drum, causes the lever I41 to be oscillated to advance the camI35 inwardly to the point where it will engage the long butt jacks Lonly to raise those groups of needles associated therewith for takingthe wrap threads. This position is maintained during the knitting of theheel and during the knitting of the foot out to the toe portion and thisprevents any wrap stripes from being formed in the heel and sole portionof the stocking.

When the push rod I52 has ridden onto a high cam on the main patterndrum, it will cause a cammed portion I64 to engage the lever I41 andadvance the cam I35 inwardly to its greatest extent which will cause itto engage not only the long butt jacks L but also the medium butt jacksM to raise both the long and medium butt jacks which. will cause thewrap stripe needles all the way around the needle circle to be raised toform wrap stripes not only in the front portion of the stocking but alsoin the back portion of the leg of the stocking.

In order to traverse the needle circle with the tubes IIS, it isdesirable to cut away a portion of the latch ring to form a cavity atI16. There is, of course, danger of needle latches becoming opened and,if they fell into this cavity during knitting, they might be brokenunless some provision were made to prevent such. We find it is notnecessary to close this cavity I 19 in the latch ring but in the gapcloser ring, we cut away certain portions thereof leaving a portion I1Iwith cammed surfaces I12 and I13 on opposed edges thereof, which willengage any needle latches which might fall to open position whilepassing the cavity I10. We also cut away all of the vertical portion ofthe gap closer ring extending from the cammed surfaces I13 over to acammed surface I15. These cammed surfaces serve to open or close thepartially opened latches of any needles which pass thereby.

By this arrangement it is possible to cut what ever size of cavityas'may be necessary in the latch ring, and it is not necessary to closethis cavity because the cam surfaces I12, I13, and I15 insure that theneedle latch will be moved to 7 fully opened or fully closed position ifthey should be partially opened in passing by t is cavity I10.

In the drawings and specification, there has been set forth a preferredembodiment of the invention, and although specific terms are employed,they are used in a generic and descriptive sense only and not forpurposes of limitation, the scope of the invention being defined in theclaims,

We claim:

1. In a circular knitting machine, having a bed plate, a pattern drum, alatch ring, and a throat gap, and a circular series of needles, spacedneedles disposed at intervals around a portion of the circle and havinglong butt jacks associated therewith, other spaced needles disposedaround another portion of the circle and having medium butt jacksassociated therewith, an elevating cam for engaging said butts andraising the same, means for advancing the cam fully inwardly to raiseboth the long butt and medium butt jacks for raising the same, means foradvancing the cam inwardly to a lesser amount to engage and raise onlythe long butt jacks, and means for feeding wrap threads to the needlesraised by their associated jacks, the means for advancing. the cam fullyinwardly and the means for advancing the cam inwardly a lesser amountcomprising a push rod movable by the pattern drum, a lever mounted onthe bed plate and having one end engaging the cam for moving it inwardlyand having its other end engageable by the push rod, and such rod havingone cam portion for engaging said lever and moving it to move the campartially inward to engage only the long butt jacks and having anothercam portion for engaging the said lever and moving the cam furtherinwardly to engage boththe medium butt jacks and the long butt jacks.

2. In a circular knitting machine, having a latch ring, and a throatgap, and a circular series of needles, spaced needles disposed atintervals around a portion of the circle and having long butt jacksassociated. therewith, other spaced needles disposed around anotherportion of the circle and having medium butt jacks associated therewith,an elevating cam for engaging said butts and raising the same, means foradvancing the cam fully inwardly to raise both the long butt and mediumbutt jacks for raising the same, means for advancing the cam inwardly toa lesser amount to engage and raise only the long butt jacks, avertically disposed rotary wrap shaft disposed above the needle circleand mounted eccentrically to the needle circle and having a plurality ofyarn feed tubes extending downwardly from its lower end, each carrying awrap thread and .being adapted to move across the needle circle to placewrap threads in front of the raised needles, a bracket secured to thelatch ring and in which the wrap shaft is rotatably mounted, a wrap hornsecured to the bracket and extending downwardly inside the needle circleand having an arcuate portion extending past the throat of the machineand along which and off the end of which the wrap threads pass, a clampand cutter plate secured to said bracket and disposed within the needlecircle and having a guide finger for wrap yarns on one end extendingabove and in spaced relation to the free end of the horn and having apointed portion extending below and in spaced relation to the other endof the horn.

3. In a circular knitting machine, having a throat with yarn feedfingers and latch ring,

means for raising a plurality of sets of spaced needles to take wrapthreads, an eccentrically disposed wrap disk having downwardlyprojecting feed tubes and mounted to rotate on a vertical axis disposedeccentrically to the needle circle and adapted to cross the needlecircle to place wrap threads in front of certain raised needles, cammeans for raising the spaced needles to take wrap threads, means foradvancing the cam to raise same but not all of the spaced needles andalso for further advancing the cam to raise all of the spaced needles totake wrap threads, a bracket mounted on the latch ring for rotatablysupporting the wrap disk, an approximately semicircular clamp and cutterplate disposed below and secured to the bracket, a horn secured to thebracket and extending downwardly inside the needle circle and extendinghorizontally to a point adjacent the throat gap and along which the wrapthreads pass, said clamp and cutter plate having a linger on one endextending above the free end of the horn for guiding the wrap threadsbeneath the clamp and cutter plate, said plate having a pointed portionat its other end extending beneath the base portion of the horn toprevent wrap yarns from passing onto the top of the plate duringreciprocatory knitting.

4. In a circular knitting machine having a, plurality of needlesarranged in a circle and having a latch rin with a throat gap in whichyarn feed fingers are mounted, certain spaced needles having long buttjacks and other spaced needles having medium butt jacks, means forfeedin wrap strands across the needle circle, cam means operable toraise only the needles having long butt jacks to cause them to take thewrap strands, said cam means also being operable to also raise theneedles having medium butt jacks to cause all spaced needles to' takethe wrap strands, a bracket mounted on the latch ring for supporting thewrap strand feeding means, a clamp and cutter plate disposed within theneedle circle, and supported by the bracket, a horn having one endsecured to said bracket, and extending downwardly inside the needlecircle, and then extending in a horizontal direction adjacent theneedles to the throat gap and along which the wrap strands pass, saidclamp and cutter plate having on one end a wrap strand guiding fingerextending above the free end of the horn and having a finger on theother end thereof extending beneath the horn for preventing wrap strandsfrom passing above the plate during reciprocatory knitting.

5. In a circular knitting machine, having a latch ring, means forfeeding wrap strands across the needle circle, means for selectivelyraising some of the needles to take the wrap strands, a substantiallysemi-circular clamp and cutter plate disposed within the needle circle,an arcuate horn disposed within the needle circle and along which thewrap strands move, means for securing one end of the horn to the latchring, one end of the plate havin a finger projecting above the free endof the horn and the other end of the plate projecting below the baseportion of the horn.

6. In a circular knitting machine having a latch ring and a cylinder inwhich a plurality of needles is mounted for vertical movement, andhaving a bed plate in which the cylinder is mounted for rotation,certain spaced needles having long butt jacks associated therewith, andother spaced needles having medium butt jacks associated therewith, acam. for raising the long and medium butt jacks, said machine havingpush rods operable by a conventional pattern drum, a lever mounted ontho bed plate and having one end engaging the cam for moving it inwardlyand outwardly, a push rod for engaging the other end of said lever, saidpush rod having one cam portion for engaging the other end of the leverfor advancing said cam to a pointwhere it will engage only the long buttjacks to raise the spaced needles associated therewith, the push rodhaving another cam portion for engaging the lever to move the camfurther inwardly towards the needle cylinder to also raise the mediumbutt jacks, means disposed above the needle circle for feeding wrapyarns to the spaced raised needles.

7. In a circular knitting machine having a latch ring and a cylinder inwhich a plurality of needles is mounted for vertical movement, andhaving a bed plate in which the cylinder is mounted for rotation,certain spaced needles having long butt jacks associated therewith andother spaced needles having medium butt jacks associated therewith, acam for raising the long and medium butt jacks, said machine having pushrods operable by a conventional pattern drum, a lever mounted on the bedplate and having one end engaging the cam for moving it inwardly andoutwardly, a push rod for engaging the other end of said lever, saidpush rod having one cam portion for engaging the other end of'the leverfor advancing said cam to a point where it will engage only the longbutt jacks to raise the spaced needles associated therewith, the pushrod having another cam portion for engaging the lever to move the camfurther inwardly toward the needle cylinder to also raise the mediumbutt jacks. means disposed above the needle circle for feeding wrapyarns to the spaced raised needles, a bracket mounted on the latch ringfor supporting the means for feeding wrap yarns, a horn member having afree end and a base portion, means for securing the base of the horn tothe bracket, said horn extending from its base portion downwardly insidethe needle circle and along the needles for approximately a semi-circle,a clamp and cutter plate mounted on the bracket and disposed within theneedle circle a finger on one end of the plate extending above the freeend of the horn for guiding wrap yarns below the plate, the other end ofthe plate extending below the base portion of the horn for preventingthe wrap yarns from passing on top of the plate during reciprocatoryknitting.

8. In a circular knitting machine having a cylinder with a plurality ofneedles and having a latch ring and a bed plate in which the cylinder ismounted for rotation, means disposed above the needle circle for feedingWrap yarns to the needles, some of the needles having long butt jacksassociated therewith and other needles having medium butt jacksassociated therewith and other needles having short butt jacksassociated therewith, a cam for engaging the jacks for raising theneedles associated therewith, a lever mounted on the bed plate andhaving one end thereof engaging the cam, said machine havingconventional pattern controlled push rods, one of the push rods having acam surface on its upper end for engaging the other end of the leverwhen raised by the pattern drum for advancing the jack raising cam toengage only the long butt jacks to raise the needles associatedtherewith to take the wrap yarns, said push rod having another camsurface thereon for engaging the other endof the lever and furtheradvancing the jack raising cam to raise also the medium butt jacksandthe needles associated therewith.

9. In a circular knitting machine having a cylinder with a plurality ofneedles and having a latch ring and a bed plate in which the cylinder ismounted for rotation, means disposed above the needle circle for feedingwrap yarns to the needles, some of the needles having long butt jacksassociated therewith and other needles having medium butt jacksassociated therewith and other needles having short butt jacksassociated therewith, a cam for engaging the jacks for raising theneedles associated therewith, a lever mounted on the bed plate andhaving one end thereof engaging the cam, said machine havingconventional pattern controlled push rods, one of the push rods having 7a cam surface on its upper end for engaging the other end of the leverwhen raised by the pattern drum for advancing the jack raising cam toengaging only the long butt jacks to raise the needles associatedtherewith to take the wrap yarns, said push rod having another camsurface thereon for engaging the other end of the lever and furtheradvancing the jack raising cam to raise also the medium butt jacks andthe needles associated therewith, a bracket mounted on the latch ringfor supporting the wrap yarn feeding means, a clamp and cutter'platesupported by the bracket and disposed within the needle circle, a hornmounted on the bracket and extending downwardly inside the needle circleand then extending horizontally adjacent the inside of the needle circlefor supporting the wrap threads and ofi the free end of which the wrapyarns pass, the clamp .and cutter plate having a finger on one endextending above the free end of the horn for guiding wrap yarns beneaththe clamp and cutter plate, the other end of the clamp and cutter platehaving a pointed portion extending beneath the base portion of the hornfor preventing wrap threads from passing onto the top of the clamp andcutter plate during reciprocatory knitting.

CORNELIUS SHERMAN GROVE, SR. JULIUS VAN MCKINNEY.

SILAS PITTMAN.

REFERENCES CITED The following references are of record in the fileofthis patent:

UNITED STATES PATENTS Number Name Date 1,928,557 Crane Sept. 26, 19331,933,281 Robinson Oct. 31,1933 2,025,913 Taggart Dec. 31, 19352,146,750 Lawson et al Feb. 14, 1939 2,206,097 Lawson et a1 July 2, 19402,213,454 Scott Sept. 3, 1940 2,278,869 Dickens Apr. 7, 1942 FOREIGNPATENTS Number Country Date 368,963 Great Britain May 17, 1932

